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XML PARSING


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mallik4u

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Joined: 17 Sep 2008
Posts: 75
Location: bangalore

PostPosted: Thu Feb 26, 2015 9:27 pm
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hi,

I am trying to PARSE the XML similar to the following. I am able to PARSE it when i have only 1 <container> tag under <Containers>. But when it is more than 1, I am getting SQLCODE -16003. Any help will be greatly appreciated.

<Main>
<Containers>
<container>1</container>
<container>1</container>
</Containers>
<Items>
<Item name="abc"> I1 </Item>
<Item name="abc"> I2 </Item>
<Item name="abc"> I3 </Item>
</Items>
</Main>

SQL I am using:
SELECT X.*
FROM XMLTABLE ('$XMLINPUT/Main/Items/Item'
PASSING XMLPARSE(DOCUMENT
(TRIM('<Main>
<Containers>
<container>1</container>
<container>1</container>
</Containers>
<Items>
<Item name="abc"> I1 </Item>
<Item name="abc"> I2 </Item>
<Item name="abc"> I3 </Item>
</Items>
</Main>'))) as XMLINPUT
COLUMNS
item char(10) PATH '.',
ctr char(10) PATH '../../Containers/container'
) AS X

Thanks,
Mallik
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GuyC

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Joined: 11 Aug 2009
Posts: 1281
Location: Belgium

PostPosted: Fri Feb 27, 2015 5:33 pm
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www.ibm.com/developerworks/data/library/techarticle/dm-0708nicola/#Handling_multiple_values_per_cell

which container do you want for each Item ?
first : use PATH '../../Containers/container[1]'
all : use PATH 'fn:string-join(../../Containers/container/text(),",")'
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mallik4u

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Joined: 17 Sep 2008
Posts: 75
Location: bangalore

PostPosted: Thu Mar 26, 2015 4:33 pm
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Thank you GuyC.
My requirement is to get all the details of <container> and <Item>. Both of them can be repeated.
Could you please let me know how we can both the tags?
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GuyC

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Joined: 11 Aug 2009
Posts: 1281
Location: Belgium

PostPosted: Wed Apr 01, 2015 2:12 pm
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there is no relationship between container and item, so that would be 2 tables/2 selects

Code:
with myxml(doc) as (
select XMLPARSE(DOCUMENT
   (TRIM('<Main>
     <Containers>
       <container>1</container>
       <container>2</container>
     </Containers>
     <Items>
       <Item name="abc"> I1 </Item>
       <Item name="abc"> I2 </Item>
       <Item name="abc"> I3 </Item>
     </Items>
   </Main>'))) as myxmldoc
 from sysibm.sysdummy1
)
SELECT 'Item', X.*
  FROM myxml
     , XMLTABLE ('$XMLINPUT/Main/Items/Item'
        PASSING doc as XMLINPUT
          COLUMNS item char(10) PATH '.'
       ) AS X
union all
SELECT 'ctr', y.*
  FROM myxml
    , XMLTABLE ('$XMLINPUT/Main/Containers/container'
        PASSING doc as XMLINPUT
         COLUMNS ctr char(10) PATH '.'
        ) AS y
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mallik4u

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Joined: 17 Sep 2008
Posts: 75
Location: bangalore

PostPosted: Wed Apr 01, 2015 2:16 pm
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Thanks Guyc.
It helps.
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